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There are three main methods used in levelling: direct levelling, trigonometric levelling, and barometric levelling. Direct levelling uses a spirit level, staff, and tape measure to measure heights between two points. Trigonometric levelling uses triangles and angles to calculate heights. Finally, bRead more
There are three main methods used in levelling: direct levelling, trigonometric levelling, and barometric levelling. Direct levelling uses a spirit level, staff, and tape measure to measure heights between two points.
Trigonometric levelling uses triangles and angles to calculate heights. Finally, barometric levelling is a method of measuring heights or depths relative to the sea level.
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